powerpc/fsl-booke: Add support for FSL 64-bit e5500 core

The new e5500 core is similar to the e500mc core but adds 64-bit
support.  We support running it in 32-bit mode as it is identical to the
e500mc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index a45a63c..1b2cdc8 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -538,6 +538,11 @@
 
 	return 0;
 }
+
+int machine_check_generic(struct pt_regs *regs)
+{
+	return 0;
+}
 #elif defined(CONFIG_E200)
 int machine_check_e200(struct pt_regs *regs)
 {